1. Departemnt of Neuroscience, Section of Neurosurgery, King Abdul Aziz Medical City, Ministry of the National Guard Health Affairs, King Abdullah International Medical Research Center, King Abdul Aziz Medical City, Jeddah, Saudi Arabia
2. Neurosurgery Department, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
3. Neurosurgery Department, Al-Noor Specialist Hospital, Makkah, Saudi Arabia
4. College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
5. Department of Medicine, Ministry of the National Guard Health Affairs, Jeddah, Saudi Arabia
6. Department of Ophthalmology, King Khalid Eye Specialist Hospital, Riyadh, Saudi Arabia
7. Department of Dermatology, King Fahad Armed Forces Hospital, Jeddah, Saudi Arabia
8. King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
9. Neurosurgery Section, Department of Neurosciences, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia